Door-knob attachment



(No Model.)

W. F. HALL.

DOOR KNOB ATTACHMENT.

Patented June 5, 1883.

INVENTUH UNITED STATES PATENT OFFICE.

VILLIAM F. HALL, OF BOSTON, MASSACHUSETTS.

DOOR-KNOB ATTACH MENT.

SPECIFICATION formingpart of Letters Patent No. 278,704, dated June 5,1883,

Application filed April 9, 1883. (No model.)

To all whom it may concern.-

Be it known that I, XVILLI'AM F. HALL, acitizen of the United States,residing at Boston, in the county of Suffolk and State of Massachusetts,have invented an Improvement in Door-Knobs, of which the following is afull, clear, and exact description, reference being had to theaccompanying drawings, making which are secured to the spindle a bymeans of screws passing through the necks or shanks b of the knobs.

C O are two rose-plates, which are screwed to opposite sides of thedoor, and are each provided with a neck, 0, which fits over the neck bof the knobs.

The knob Bis provided on its inner side with. an annular recess, (1,formed by milling or otherwise, for the purpose of receiving one or morewashers, e, which are thus interposed between the end of the neck a ofthe rose 0 and the knob B. By thus constructing the knob B with anannular recess for the recep 35 tion of the washers e, the knobs A B canbe nicely adjusted to fit doors of varying thickness, and all rattle andplay thus avoided. Furthermore, a great saving in time and labor iseffected, as the holes in the spindle a for the 0 reception of thescrews which hold the knobs in place will not have to be so accuratelybored as heretofore, thus lessening the expense of manufacture.

What I claim as my invention, and desire to secure by Letters Patent, is

A door-knob provided with an annular re cess, d, and neck 12, incombination with a rose, O, with its neck 0, and the washers c, allconstructed to operate substantially in the manner and for the purposeset forth.

. fitness my hand this 7th day of April, A. D. 1883.

Y'VILLIAM F. HALL.

In presence of- CLARA P. HALL, HENRY Y. HALL.

